Samuel a



S. A. STONEBAEK.

WATERPROOF RAILROAD TIE.

APPLICATION FILED SEPT. a. 19m.

1 307,565 Patented June 24, 1919.

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Samuel .JQ, Sfa/zebacfi S. A. STONEBACK.

WATERPROOF RAILROAD THE APPLICATION FILED SEPT. s. 1918.

1,307,565. Patented June 24, 1919.

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SAMUEL A. STONEBACK, OF PHILADELPHIA, PENNSYLVANIA.

WATERPROOF RAILROAD-TIE.

Specification of Letters Patent.

Patented June 24, 1919.

Application filed September 9, 1918. Serial No. 253,284.

To all whom it may concern: I

Be it known that I, SAMUEL A. STONE- BACK, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certainnew and useful Improvements in Waterproof Railroad-Ties, of which the following is a specification.

One object of my inventlon is to provide a railroad tie the major portion of which consists of reinforced water-proof concrete or cement, and which will withstand downward pressure without, fracturing in the middle.

Another object is to so construct my improved tie that electric current will not pass from one rail of a track to the other rail of the track through the body of the tie.

Another object of my invention is to provide my improved tie with readily removable rail-bearing blocks which, when worn due to the engagement of the rails therewith, can be quickly replaced in order to give the rails their proper setting and grade.

A still further object is to so construct my improved tie that sections either side of the middle of the length can slightly move relatively to each other so that any improper base setting or tamping will not cause the fracture of the tie.

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference bein .had to the accompanying drawings in which- Figure 1 is a top plan view of my improved railroad tie, showing how rails can be supported thereon,

Fi 2 is a longitudinal section taken on the line 22 of Fig. 1,

Fig. 3 is a transverse section taken on the line 33 of Fig. 1 and drawn on an enlarged scale,

Fig. 4 is a transverse section taken on the line 44 of Fig. land drawn on the same scale as Fig. 3,

Figs. 5 and ,6 are perspective views of blocks which form a part of my invention,

Fig. 7 is a transverse section taken on the line 77 of Fig. 1, and a a Fig. 8 is a top plan view of a thrust plate which I preferably employ.

. Referring to the drawings, 9 represents my improved tie which includes two sections 10 and 11 which are made of concrete and are water-proofed by mixing the cement of the concrete with dehydrated lime or other similarly acting agent.

Two blocks 12 and 13 which are preferably made of wood, are mounted one upon the other, the block 12 tapering upwardly and the block 13 tapering downwardly, as clearly shown in Fig. 2. These-blocks 12 and 13 are interposed between the adjacent ends of the sections 10 and 11 and the inner surfaces thereof are cut away to permit metallic tension bars 14, 15, and 16 to extend therethrough, as clearly shown in Fig. 7. Each of the tension bars 14, 15, and 16 has a portion of its length embedded within each of the sections 10 and 11 and extends longitudinally of the tie, as illustrated in Figs. 1 and 2. Thus the tension bars serve as reinforcing members for the sections 10 and 11 and serve to tie these sections together with the blocks 12 and 13 therebetween.

It will be noted that the extreme inner ends of the sections lO and 11 conform to the tapering contour of the blocks 12 and 13. The extreme inner ends of the sections 10 and 11 are provided with recesses 17 and 18 respectively. p

The tension bars 14, 15, and 16 extend through the recesses 17 and 18 and the recesses are'filled with a water-proof resilient or plastic matter such, for example, as asphaltum. The recesses 17 and 18 flare toward the blocks 12 and 13 and thus a slight pivotal movement of the concrete sections 10 and 11 is permitted without fracturing the portion of the concrete immediately adjacent the blocks 12 and 13, said blocks 12 and 13 being preferably made of wood or other slightly resilient material which slightly yield when their sides are compressed either due to an end thrust from the sections 10 and 11 or an upward or downward pressure upon either of the sections 10 and 11.

Main bearing blocks 19 and 20 are embedded in the concrete and upon these main blocks are mounted other bearing blocks 21 and 22 upon which the rails 23 rest. Each of the bearing blocks 19, 20, 21, and 22 has its sides provided with semicircular grooves 24. The grooves 24 of the blocks 19 and 21 register with each other and the grooves 24 of the blocks 19 and 20 also register, for a purpose hereinafter described.-

Thrust plates 25 are embedded within the concrete at opposite sides of the bearing blocks and have semicircular grooves 26 which are adapted to register with the grooves 2 1 so as to permit anchoring bolts 27 to secure the rails 23 to the ties and also to hold the blocks 19, 20, 21, and 22 in position.

These bolts 27 have anchors 28 which are tapped to receive the threaded lower ends of said bolts, as clearly shown in Figs. 2 and 1.

The holes 29 through which the bolts 27 extend are lined with a water-proofing material 30 and the anchors 28 are also coated with an insulating and water-proofing material 31 so that there is no possibility of electric current traveling through the bolts to the rails.

By having the bolts 27 extending through the grooves 24 of the bearing blocks the latter cannot slide out of position since they are thus locked to the tie. Each of the sections 10 and 11 has metallic saddles 32 embedded therein, said saddles being preferably made of the shape shown in Fig. 3 and having portions hooked over the reinforcing bars 14, 15, and 16.

By providing the blocks 12 and 13 and inserting them in the manner above described, it is innnaterial whether pressure is applied between the rails or at the outer sides of the rails. In the first case the block 12 will take up the thrust or lateral compression and in the other case the block 13'will take up said thrust or lateral compression.

The blocks 12 and 13 thus form resilient members which entirely separate the sections 10 and 11. My improved tie, therefore, has two extremely valuable and important features. In the first place, the water-proofing of the cement and coating the track bolts, holes and anchor plates, as well as all wooden blocks on all sides and especially when they come in contact with the concrete, prevents travel of electricity through the body portion of the tie from one rail to the other, and in the second place, the tie will not fracture centrally due to pressures applied centrally or adjacent the ends.

By water-proofing the cement or concrete of the tie as above noted, water will be pre vented from penetrating into the body portion of the tie and the entire interior of the tie will be kept dry so as not to form a 0011- ductor for electricity, and thereby also prevent electrolysis of any metal parts of the tie.

While I have described my invention as taking a particular form, it will be understood that the various parts of my invention may be changed without departing from the spirit thereof, and hence I do not limit myself to the precise construction set forth, but consider that I am at liberty to make such changes and alterations as fairly come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A reinforced concrete tie including two concrete sections arranged longitudinally end to end; means interposed between the adjacent ends of said sections; means having portions embedded within each of said sections and serving to tie said sections together, said tying means extending through a plane occupied by said interposed means, said interposed means being made of slightly compressible material, said end portions of the sections having recesses through which said tying means extends; and a filling of compressible material within said recesses, substantially as described.

2. A reinforced concrete tie including two concrete sections arranged longitudinally end to end; means interposed between the adjacent ends of said sections; and means having portions embedded within each of said sections and serving to tie said sections together, said tying means extending through a plane occupied by said interposed means, said interposed means tapering upwardly and downwardly, substantially as described.

3. A reinforced concrete tie including two concrete sections arranged longitudinally end to end; means interposed between the adjacent ends of said sections; means having'portions embedded within each of said sections and serving to tie said sections together, said tying means extending through a plane occupied by said interposed means, said interposed means tapering upwardly and downwardly and being made of slightly compressible material, said end portions of the sections having recesses through which said tying means extends; and a filling of compressible material within said recesses, substantially as described.

4. A reinforced concrete tie including two concrete sections arranged longitudinally end to end; means interposed between the adjacent ends of said sections; means having portions embedded within each of said sections and serving to tie said sections together, said tying means extending through a plane occupied by said interposed means, said interposed means tapering upwardly and downwardly and being made of slightly compressible material, said end portions of the sections having recesses through which said tying means extends; and a filling of compressible material within said recesses, said recesses flaring toward said interposed means, substantially as described.

5. A tie including two concrete sections arranged longitudinally end to end; two wooden blocks one mounted above the other and both being interposed between the ad- In testimony whereof I have signed my jacent ends of said sections; and metallic tie name to this specification in the presence of bars having portions embedded in both of two subscribing witnesses.

said sections and extending between said in- SAMUEL A. STONEBACK. terposed blocks, said blocks tapering up- Witnesses:

Wardly and downwardly from said tie bars, E. R. AIBURGER,

substantially as described. EDWARD G. EASTWOOD.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

